Suspension of the cars of airships.



H. NAATZ. SUSPENSION-0F THE CARS 0P AIRSHIPS. APPLICATION mum 1:19.191;

1,087,134, Patented Feb. 17, 1914 UNI arm NAAEZ, or BITTERFELD, ennmsnr, Assmn'on T LUPT-FABB.ZENG- GESELLSCHAFT, M. B. Ii, OF BERLIN, GERMANY.

SUSPENSION OF THE CARS 0F AIRSHIPS.

, new and useful "improvements in the Suspension of the Cars of Airships, of which the following is a. specification.

Repeatedly attempts have been made to replace the usual slidingloop belt for the suspension of cars of air ships, by leaving out the loops, cutting out the material in the shape of an arc and utilizing the ends of the said arcs the points from which the car and its load is suspended. This was in accordance with the ideawell known in the construction of sails, of transmitting the stresses distributed over the surface of a sail, to a. bolt rope. This direct transmission has however the drawback that the stresses in the belt or boom are not distributed in the manner intended. The greatest load is received by the points or ends of the arcs whilev the arcs themselves carry little. This is due to the Fact that by sewing together two portions of fabric and cable, or belts there is produced a statically indefinite strrfirturc in which the cable or band, being a more yielding part. takes up less load, and, seat the ends there is very little material, the fabric takes up the specifically higher stresses. It has also been proposed to carry bolt ropes hmsely within a looped condnit formed on the arc shaped edges of the supporting belt and to connect such ropes by means of T- shaped members with the cables carrying the load and with rigid tubular thrnst uiembers distancing the said T- shaped members each from the other.

From this construction the present invention differs by avoiding all rigid thrust members, the whole construction thus taking the shape of a non-rigid net which continuously incloses the body of the balloon in the accompanying drawings, Figure 1 'is aside view of abroken away part o ia supporting belt provided with the device according to the present invention; Fig. 2 is a diagram of' forces, p'rdduoed in the system,

by asuspended load. i.

The invention is explained in the construction shownby way of example in Fig. 1 of the accompanying drawings where l is the bolt rope, and b are the flaps of the sup Specification of Letters Patent.

Patented Feb. 1 7. 1914.

Application filed April 29. 1913. Serial No. 764,382.

porting belt a, turned upward. Owing to this arrangement, the flaps Z can freely slide on the bolt rope when the latter stretches, and always occi'spy such a position that the lateral cm'nponent T of the force to acting on a flap becomes either zero or a minimum depending only on slight friction. In other words the flaps 'ulways trv to take up a position at right angles to toe curvature of the rope. Thus there is produced a stoti. molly definite polygon of forces with continuous load. normally directed toward the curve, which load when moreover the curveture is onstam. will be constant also in proje tion. that is to at the seem, as shown in Fig. fore a load which depends only on the ten sion in the cable which is constant through the whole length, and on the curvature. The ,-onstu1 cy of the tension is in practice somewhat altered by the friction of the cable in the loops of the flap but this is imperceptible. as proved by experiments. A SET. tain slight friction is even desirable in order to equalize small dill'erences between the loads; at the single points of engagement. (living to the loose connection between the bolt and the rope the belt itself son become deformed without the whole dis tribniiioi'i of the iuml.

instead of the lisp J, 'ing and preferably use a continmms 11ml: inp; from the e iz-it i in the draw-- is possible without deport The folds produced in'thut ruse between pmvcr transmitting: pla es =.v ild not any oil t on the specifi dress on the fabri of the belt.

In order to keep the stresses on the bolt ropes at their ends as uniform as possible, the points of engagement are further con connection is effected on the one hand, by the fabric flops fat the ends of the arc, and on the other hand, by separate loops (1 on the tension boom engaging with the loops of the cables for the load. The whole con struction thus takes the shape of a not which continuously inoloses the body of the balloon. Hence the tension boom 0 enables the load P, P (Fig. 2) to be resolved not only into components in the two cable directions S and S or S and S, but also into horizontal components ll, that is to say, i

a third direction, as shown on the right The laps I) receive there nected together by one tension boom 0. The

hand side in Fig. 2, where for instance the looped ends of the cables carryinf'the load force P is resolved into H and Q, and the a tension boom carried loosely within loope 15 latter component into E, and S, namely in flaps formed on the supporting belt between such manner that S=S". the are shaped edges and provided with 6 What I do claim as my invention, and deloops engaging the looped ends of the cables sire to secure by Letters Patent of the I carrying the load, substantially as set forth. United States, is In testimony whereof I have hereunto set 20 In a device for the suspension of the cars my hand in presence of two subscribing witof air ships the combination of a sup orting nesses.

10 belt having are shaped edges with be t ropes HERMANN NAATZ.

carried loosely within a looped conduit Witnesses! formed on the said are shaped edges and FELIX DINGLINGER,

having looped ends engaging with the Gnono v. Hmmsnonw.

. sire to secure by i United States, is:

- latter component into S an Correction in Letters Patent Nat- 087,1334.

are: m

hand side in Fig. 2, where for instance the looped ends of the cables carryin the load force P is resolved into H and Q, and the tension boom carried loosely wit in looped 15 d S, namely in flaps formed on the supporting belt between 1 the are shaped edges and provided with loops engaging the looped ends of the cables 1 carrying the load, substantially as set forth. I i In testimony whereof I have hereunto set 20 v In a device for the suspension of the cars my hand in presence of two subscribing wit.- of air ships the combinatlon of a supporting nesses. belt havingarc shaped edges with b0 i HERMANN N AATZ.

V t ropes within a looped conduit Witnesses:

FELIX DINGLINGER, Gnono v. Hrnzrzsnonrr.v

such manner that 3:8.

What I do claim as my invention, and de- Letters Patent of the carried loosely formed on the said are shaped ed es and having looped ends engaging with the,

I Itis hereby certified that the name bf Theassignee in Letters Patent No. 1,087,134, granted February 17,1914, upon the application ofv fiernrann Naatz, ofBitterfeld, Gel many, for an improvement in Suspension of the (Jars of Airships, was erroneously written andprinted as Lu'ftrl ahrzeng-Gesellschaft, whereas said name should have been written and printed as A Luj't-F/l7-geug Gesetlsohaft, as shown by the records of assignments in this office and that the said Letters Patent should be read with this correction therein that the same may conform to the record of'the case inthe Patent Ofiice.

Signed and sealed this 3rd day of March, A. D, 1914.

[smn] J. '1. NEWTON,

Acting Commissioner of Patents.

4 Itja hereby certified that the nnmebf the aa'uignee in Letters Patent No. 1,087,134, 'mnted Febrnery 17, 1914 upon the application cl Hermann Nantz, of Bitterfeid,

name should have been written and printed as Lufl-Fa/zrzeug- Gad mam, shown by records of assignments in this oflic e; and that the said Letters Patent should be read with this correction therein thatthe same may eonform to the record of'the case inthe Patent Ofiice.

Mir-v:

Signed and sealed this 3rd day of March, A. D., 1914 N Correction in Letters Patent Nq.1' 037,134-

Acting cbmmi iimir offamu.

Germany, for an improvement in Suspension of the Cars of Airships, was

erroneonsly written and printed as Lnl't-Fahrzeng-Gesellschaft, whereas said 

